Instructions

Put butter and sugar on a board and mix till all sugar is absorbed; now sift flour onto the board and take one tablespoonful from it and add the same quantity of rice  flour, instead: mix all together with the pinch of baking powder, then add the butter and sugar; break little pieces of butter into the flour until all is broken up, then rub the pieces among the flour until it is ready to be made into cakes; this quantity makes two cakes. Put them on a powdered oven shelf, and bake for half an hour.

To prevent burning, the oven shelf could be placed on top of another covered with sand.